Cookies on the OMEGA websites
We use cookies on this website, these cookies are essential for the website to work correctly.If you continue without changing your settings, we'll assume that you are happy to receive all cookies on this website.To find out more information about these cookies please click here.
Basket  |  Contact  |  Help  | 
Free Phone0800 488 488
International+44(0) 161 777 6611

Your Source for Process Measurement & Control

High Accuracy Digital Pressure Gauge for Differential Pressures

DPGM409DIFF Series

Differential Pressure transducer from Omega Engineering | DPGM409DIFF Series

Differential Pressure transducer from Omega Engineering

£780.00 DPGM409-010BDWU

  • Wet/Wet Differential Pressure Measurement
  • 5-Point NIST Traceable Calibration
  • Easy to Read 25 mm Backlit LCD Display
  • High 0.08% Accuracy
  • Hi and Lo Alarms Standard
  • MIN/MAX/AVG Reading
  • User Selectable Analogue Output 0 to 5 Vdc, 0 to 10 Vdc or 4 to 20 mA
  • Bar Graph on Display
  • Wireless Transmitter Option Sends Reading to Remote Location and Includes Charting and Data Logging Software
  • Battery Powered with Long Battery Life
  • IP65 (NEMA-4X) Enclosure
  • G¼ Pressure Connections Standard - Others Available
Pressure Transducers - View related products


OMEGA’s DPGM409 digital differential pressure gauge incorporates a rugged 316SS enclosure designed for washdown and marine applications with a precision 0.08% accuracy pressure transducer and 316L SS wetted parts and body. The result is an extremely durable digital pressure gauge.

This differential pressure digital gauge works perfectly with water, air or hydraulic oil as well as many other fluids. Specifications
Accuracy (Combined Linearity, Hysteresis and Repeatability): ±0.08% BSL
Storage Temperature: -40 to 82°C
Operating Temperature: -18 to 66°C
Thermal Effects (Over Operating Range):
    Zero Balance:
        Ranges 25 mb to 70 mb: ±1% span
        Ranges >70 mb: ±0.5% span
    Span Setting:
        Ranges 25 mb to 70 mb: ±1% span
        Ranges >70 mb: ±0.5% span
Minimum Resistance Between Transducer Body and Any Wire: 100MΩ @ 50 Vdc
Pressure Cycles: 1 million minimum
Long Term Stability (1-yr.): ±0.1% FS typical

Analogue Output: User selectable 0 to 5 Vdc, 0 to 10 Vdc or 4 to 20 mA (external 24 Vdc power supply required).
    Set jumper to Select Current or Voltage: Software selection of 0 to 5 Vdc, 0 to 10 Vdc, or 4 to 20 mA
    Bidirectional ranges have a unidirectional analogue output equal to their full span; i.e. -15 to +15 psi = 0 to 10 Vdc.
    Analogue output is independently scalable
Analogue Output Cable: 2.7 m with ferrite core (included)
Analogue Output Accuracy: 0.08% typical (0.15% maximum in RF field @ 10V/m)
Line/Static Pressure: 500 psi maximum applied to both sides simultaneously
Proof Pressure (differential):
    25 mb: = 10 times range
    70 mb: = 6 times range
    170 mb to 50 Bar: = 4 times range
Hi-Side Containment Pressure (Differential):
    25 to 350 mb: To 1000 psi
    1 to 50 bar: To 3000 psi
Display: 4-digit LCD with user Selectable backlighting, (9999 count) 25 mm character height
Sample/Display Range: User selectable from 0.38 to 30 seconds (preset to 1/second)
Computer Interface: USB connection for set-up, cable included

Pressure Connection: G ¼ male
Power: One 3.6V lithium 8.4 Ah capacity (C cell) included (two included with wireless option) (replacement battery model no. BATT-C-3V)
Battery Life (Typical): Up to 4-years
Enclosure Material: 316 Stainless Steel and ABS centre gasket
Enclosure Finish: Electropolished
Enclosure Environmental Rating: Weatherproof, IP65
Sensor Wetted Parts: 316L stainless steel
115 D x 89 W x 74 mm H
    Sensor: 72 to 89 mm L below display, 80 mm wide
Weight: 1 kg typical depending upon configuration
Front Panel Functions:
Manually turns backlight on/off
    Min/Max: Recalls min/max values
    Zero/Clear: Zeros display or clears min/max

Software Settings (via USB)
Update Rate:
4 options, 10, 5, 2, 1 times per second
Units: psi, inHg, inH2O, bar, mbar
Lock: Allows the lock-out of front panel functions
Alarms: User selectable “High” and “Low” alarm limits (open collector)
Backlight: On/Off, 10 seconds, 30 seconds, 1 minute, 5 minute
Wireless Transmitter (Optional): Channel number, transmission rate, alarms, sensor offset, chart recording, data logging
Calibrate: Zero and Span
Overrange Indication: “_ _ _ _”

Wireless Option Specifications
Transmit Sample Rate:
User programmable from 1 sample/2 min to 1 sample/2 sec
Radio Frequency (RF) Transceiver:
    Carrier: ISM 2.4 GHz
    RF Output: 10 dBm (10 mW)
    Range of RF Link: Up to 120 m outdoors (line of sight); Up to 40 m indoors/urban
Included Software: Requires Windows® 7 (32 bit); XP, Vista
Data Transmission to Host: Pressure reading, ambient temperature reading, RF transmit strength and battery level
Place Order(Specify Model Number)
Part Number/ Desc.
DPGM409-025HDWU Star
Availability: 3 weeks
RoHS compliant
0 to 25 mbar wet/wet differential pressure
DPGM409-070HDWU Star
Availability: 3 weeks
RoHS compliant
0 to 70 mbar wet/wet differential pressure
DPGM409-170HDWU Star
Availability: 3 weeks
RoHS compliant
0 to 170 mbar wet/wet differential pressure
DPGM409-350HDWU Star
Availability: 3 weeks
RoHS compliant
0 to 350 mbar wet/wet differential pressure
DPGM409-001BDWU Star
Availability: 1 week
RoHS compliant
0 to 1 bar wet/wet differential pressure
DPGM409-002BDWU Star
Availability: 3 weeks
RoHS compliant
0 to 2 bar wet/wet differential pressure
DPGM409-3.5BDWU Star
Availability: 3 weeks
RoHS compliant
0 to 3.5 bar wet/wet differential pressure
DPGM409-007BDWU Star
Availability: 3 weeks
RoHS compliant
0 to 7 bar wet/wet differential pressure
DPGM409-010BDWU Star
Availability: 3 weeks
RoHS compliant
0 to 10 bar wet/wet differential pressure
DPGM409-17.5BDWU Star
Availability: 3 weeks
RoHS compliant
0 to 17.5 bar wet/wet differential pressure
DPGM409-035BDWU Star
Availability: 3 weeks
RoHS compliant
0 to 35 bar wet/wet differential pressure
DPGM409-050BDWU Star
Availability: 3 weeks
RoHS compliant
0 to 50 bar wet/wet differential pressure
BATT-C-3V Star
Availability: 6 weeks
RoHS compliancy undetermined
Replacement Lithium Battery
All amounts shown in EUR, GBP, or USD
Note: Comes complete with operator’s manual, battery (2 with wireless option), set-up and configuration software, USB cable (with wireless option) charting and recording software with common drivers, USB cable, 2.7 m analogue output cable with ferrite core and 5-point NIST traceable calibration certificate.
To order wireless option add suffix “-W” to model number for additional cost.
Ordering Example: (1) DPGM409-010BDWU 10 bar wet/wet differential pressure gauge, £780.00